﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace sinhvien
{
    class Program
    {
        static void Main(string[] args)
        {
            sinhvien sv = new sinhvien();

            ConsoleKeyInfo k;
            
    	
            //--- Xay dung menu ----- 

            Console.WriteLine("Quan ly sinh vien");
            Console.WriteLine();
            Console.WriteLine("An   1:Nhap danh sach sinh vien ");
            Console.WriteLine("An   2:Tim ");
            Console.WriteLine("An   3:Luu ");
            Console.WriteLine("An   4:Hien thi thong tin");
            Console.WriteLine("An ESC:Thoat ");
           	Console.WriteLine();
            do 
            { 
                Console.WriteLine();
               	Console.Write("Nhan phim: ");
                k = Console.ReadKey();

                if (k.Key == ConsoleKey.D1)
                {	
                   //Nhap
                }
                else if (k.Key == ConsoleKey.D2)
                {
                  //Tim
                }
                else if (k.Key == ConsoleKey.D3)
                {
                  //Luu
                }
                 else if (k.Key == ConsoleKey.D4)
                {
                  //Hien thi
                }
                else if (k.Key == ConsoleKey.Escape)
           		{ //thoat
                Console.Clear();
                Console.WriteLine("GOODBYE!!!");
                
            	}
                else
                {	 Console.WriteLine();
                	 Console.WriteLine("Nhap khong dung ki tu, xin nhap lai");
                   
                }
            }while(k.Key != ConsoleKey.Escape);
             Console.ReadKey();
               
            }
     
    }
    
    class sinhvien
    {
        
    }
}



          